Alright....

Does anyone here know the effects of milling an E31 head down?
Like how many thousands does what to the CC size?

I am wanting to take the 42cc head down to around a 38cc size.

Anyone know?

Thanks in advance. =)

 

The shop doing the milling usually can cc the chamber as well. Just ask whoever is doing the work.

 

That would work. I can measure the chamber, probably the same way they would. But, How do they know how much to take off to get the desired cc's? Seems like they would have to mill, and measure, mill and measure. Gonna call some up.